I could agree that since Duragloss says it's a 'Coating'...
then it's gotta be a 'Coating'.
But if a person would happen to disagree, or be otherwise unsure: then just agreeing with the good folks at Duragloss would be the easy way out...(even though it also says 'Coating' on the packaging).
So...(long story short)...
How do you define what constitutes:
-A 'Coating?
-A Sealant?
Bob